I later found that: Provides updates for L77 ROM for Entry Management Engine (ME) systems, and L78 ROM for Full Management Engine (ME) systems. If the laptop were under warranty fine, I would have gone to HP directly, but that was not the case.Because i get the base (empty ) rom from my supplier with L77 I did some transfer in it to make it L78, that went ok but is not how you should do it, that’s is why i get some differences I guess. So, as a last resort and without breaking any copyright laws, I used wndmifit64.exe from HP. Gather your laptop info: Serial (below battery), SKU (product number), PCID (remove back panel) and System Board CT (look through the holes in the metal plate, its 14 digits from the left to right on a white label). Gather necessary files by googling nbdmifit-2.03.zip (which are the HP dmi fit tools), from the Chinese site.

Put contents of the folder wndmifit in a the root of a bootable USB MS-DOS pen drive (Use Rufus) Copy first and then rename FSMC.bin as SMC bin. The wndmifit64.exe application is run from within Windows, but before it can write to the BIOS you must enable the MPM mode (manufacturer programming mode - the red letters when the computer gives the error that count up to 10 eventually). I tried recreating whatever circumstances I was doing when the laptop system information got stupidly and annoyingly reset. By the way, mine got messed up after trying to recover my machine from the 10.10.3 update screwed up my install, finally now working 100% as before without any losses. So, to access the MPM, you must reset the count. I got it reset with rmpmcnt within Windows and the renamed copied file SMC. It performed the reset in the next reboot. Then I was able to change the values with wndmifit64.exe.

Input the info stated above, forget about the rest. According to the Step-by-Step Guide, the next step is to create a Windows PE USB disk.You don't need to dissemble as far as I did, just take the. I struggled with this for many hours, and while I could create the bootable Windows PE (v10, v8, & v2.1) USBs, I could never successfully run the Wndmifit64.exe application in that environment. HP has a WinPE64-2.10 tool that automates this process, but I failed to replicate it with the Windows ADK. My recommendation is to use an MBR install of Windows 10 rather than the fancy Windows PE method. Note that a GPT/UEFI install of Windows will not work. My solution was to install a blank harddrive into the laptop, and install Windows 10 Pro onto it using a USB drive created with the Windows 10 Download Tool.

Hp dmi tools for hp bios.zip